Coherent and Quside Demonstrate Quantum Entropy Source For Quantum-Safe Encryption

Coherent Corp

Coherent Corp, a leader in photonics, and Quside, a quantum tech innovator, have made a big leap in hardware-based cybersecurity. They successfully demonstrated a quantum entropy source that can be mass-produced. The milestone shows that we can now embed high-speed, verifiable quantum entropy at scale. This is a key part of modern digital security. It enables new security architectures for many different applications.

The jointly developed solution combines Coherent’s vertically integrated vertical cavity surface emitting laser (VCSEL) technology, manufactured at scale on 6-inch wafers, with Quside’s quantum random number generation expertise. For the first time, a single VCSEL enables runtime entropy verification while delivering high-quality, observable randomness suitable for cryptographic key generation, secure communications, and emerging quantum-safe and crypto-agile systems. As a result, quantum-grade security primitives can move beyond niche use cases into mainstream processors, secure elements, and hardware roots of trust.

“VCSEL technology has already demonstrated its reliability and scalability across datacenters, sensing, and high-volume optical systems,” said Dr. Giovanni Barbarossa, Chief Strategy Officer at Coherent Corp. “This collaboration shows how mature photonic manufacturing platforms can enable entirely new security functions while meeting the cost, reliability, and scale requirements needed for broad market adoption.”

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“Security systems are only as strong as the randomness they rely on,” said Dr. Carlos Abellán, Chief Executive Officer and co-founder of Quside. “What makes this milestone unique is not only that the entropy is generated through quantum processes, but that it is fast, verifiable, and mass manufacturable by relying on volume proven 6” VCSEL production. This moves locally verified quantum entropy technology into practical, deployable infrastructure.”

Coherent and Quside will showcase the technology with a live demonstration and development kits at Photonics West 2026 in San Francisco. Attendees will be able to explore how the solution integrates into next-generation secure designs—from silicon through system-level implementations—to address the growing demand for trusted entropy generation and verification.

With production-ready components and established manufacturing processes, Coherent and Quside are accelerating the path toward high-volume commercial deployment of quantum entropy solutions built for real-world, large-scale secure infrastructure.